Home / 7,974.82-11,003.20-5,457.71

Finding the Fourth Proportional to 7,974.82, 11,003.20 and 5,457.71

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Solution

The fourth proportional to 7,974.82, 11,003.20 and 5,457.71 is: 7,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.82 : 11,003.20 = 5,457.71 : x
  2. Step 2: Convert to fraction form
    7,974.82/11,003.20 = 5,457.71/x
  3. Step 3: Cross multiply
    7,974.82x = 11,003.20 × 5,457.71
  4. Step 4: Simplify right side
    7,974.82x = 60,052,206.01
  5. Step 5: Solve for x
    x = 60,052,206.01/7,974.82
  6. Step 6: Final answer
    x = 7,530.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.